Modification of Root System,Tap Root,Storage Roots,Conical,Napiform,Beta Vulgaris,Fusiform,Raphanus Sativusl,Nodulated tap Roots,Pneumatophores or Respiratory Roots

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Morphology of Flowering Plants Morphology of Plants Characteristics of Root Root System Modifications of Root Systems Adventitious Root Roots Modified for Additional Support Roots Modified for Vital Functions Characteristics of Stem Kinds of Bud Modifications of Bud Types of Stems Aerial Modifications of Stem Plant Leafs Shapes of Lamina Leaves Venation Leaves Phyllotaxy Simple and Compound Leaves Functions of Leaves Importance of Studying Leaf Morphology

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Your Ad Here	Modification of Root System Tap Root 1. Storage roots The primary root of tap root become fleshy and swollen due to storage of food. These are of following types: (a) Conical. Root is broad t the base and gradually tapers towards apex e.g. Raphanus sativus (Radish), Daucus carota (Carrot). (b) Napiform. The food gets accumulated only in upper parts to give it a top-shaped appearance e.g. Beta vulgaris (beet root) and Brassica napus (turnip).
(c) Fusiform. The root is swollen in middle and tapers towards the base and apex e.g. Raphanus sativus (radish). Fleshy Tap Root
2. Nodulated tap roots These are roots modified for N2 fixation. These roots are observed in leguminous plants (pea, gram). These roots bear many small irregular swellings called root nodules. These nodules are living places for nitrogen fixing bacteria, Rhizobium leguminosarum. These bacteria fix and convert free atmospheric nitrogen into nitrates which are absorbed by roots. Pneumatophore of Rhizophora	Your Ad Here
3. Pneumatophores or respiratory roots These are aerial (-ively geotropic) roots or aerophores produced in mangrove plants e.g. Sonneratia, Avicennia, Rhizophora. The underground roots of plants sent out aerial roots or Pneumatophores. These bear several pores or lenticels which help in gaseous exchange.

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Anatomy of Flowering Plants Tissue and Meristematic Tissue Classification of Meristematic Tissue Apical Meristems of Stem and Root Permanent Tissue Simple Permanent Tissue Complex Tissues - Xylem Types of Xylum Complex Tissues - Phloem Classification of Permanent Tissue on Basis of Their Functions Types of Vascular Bundles Anatomy of Monocot Stem - Maize, Primary Structure of Stem Anatomy of Dicotyledonous Stem - Sunflower Stem Secondary Growth in Dicot System Origin and Activity of Cambium Origin and Activity of Cork Cambium Heart Wood and Sap Wood Primary Structure of Monocot Root Primary Structure of Dicot Root Secondary Growth in Dicot Roots Origin and Activity of Vascular Cambium Origin and Activity of Cork Cambiums Internal Structure of Dicot Leaf Internal Structure of Xerophytic Leaf Internal Structure of Monocot Leaf - Isobilateral Leaf